AceShowbiz -

Before he became a big star, Justin Bieber once received bad treatment from his peers. In an interview with Showbiz Tonight, the Canadian singing sensation admitted that he was a victim of bullying.

"I was bullied," the 18-year-old heartthrob said. When the reporter asked, "You're actually bullied?", the "Boyfriend" hitmaker explained, "Most people in their lifetime have been at some point. I think it's about time that people start making a change."

The boyfriend of Selena Gomez went on noting, "A lot of the time, principals let it go, teachers let it go, other students just let it go." He also shared a step that could be taken by someone who witnesses a bullying, "If you're a bystander, too, tell somebody, because a lot of times, it's just not spoken of, and you ended up keeping it all inside, and it just hurts even more."

Telling people to start taking a stand against tormentors, the Grammy-nominated star supports documentary film "Bully" which presents stories of bullying issue in America. "I think [Bully] is really powerful and can help change a lot of lives," he gushed.